2010 Freightliner M2 Ambulance

7/18/2011 MCFRS APPARATUS 1 Specification Chart

1. Engine Cummins 6.7 liter 240 HP 2. Antilock air S-Cam drum 3. Front axle 8,000 lb. GAWR 4. Rear axle 12,000 lb. GAWR 5. Actual unit weight 15,500 lb. empty 6. Unit height 10’ 6” (126”) 7. Unit length 23’ 6” (282”) 8. Alternator 270 amp 9. Coolant Shop approved Ethylene Glycol 10. Engine oil 15-40 weight ultra flow CJ-4 11. Transmission EVS 3000 Trans-Synd only 12. Air compressor Bendix 13.2 cfm 13. Power steering fluid Dexron lll transmission fluid

7/18/2011 MCFRS APPARATUS 2 General Information

1. Before starting the unit allow the gauges to complete a sweep. This will take approximately seven seconds. 2. There is no battery kill switch on these units. All electrical devices and headlights must be shut off or dead batteries will result. 3. The parking will not release until the brake light in the dash cluster goes out. Until the brake releases, the transmission will not engage. 4. The master, sequencer, and primary switch must all be on for the air horns to function. 5. Fast idle automatically engages when the emergency master is on and the is set. 6. Never mix fluids for any reason. Do not cross contaminate fluids by using the same container to add multiple fluid types.

7/18/2011 MCFRS APPARATUS 3 Exhaust brake CAUTION

These units are equipped with a exhaust brake. The exhaust brake will not be used in low traction or slippery conditions.

1) A exhaust brake works by retarding the engine by creating a high exhaust pressure.

7/18/2011 MCFRS APPARATUS 4 Exhaust brake

2) A exhaust brake works by retarding the engine by creating a high exhaust pressure. 3) As the engine speed slows so does the drive train which in turn slows the unit. 4) When low traction or slippery conditions exist turn the exhaust brake off.

7/18/2011 MCFRS APPARATUS 5 Engine Compartment Right (Officer’s) Side

3

1

4 2

7/18/2011 MCFRS APPARATUS 6 Engine Compartment Left (Driver’s) Side

4

3

5

2 6

1

7/18/2011 MCFRS APPARATUS 9 Right Side Components

Air dryer

The air dryer is located mid frame. The air dryer should purge at approximately 120 psi.

7/18/2011 MCFRS APPARATUS 13 Transmission Fluid Check

1. The transmission fluid level may be checked in the cab thru the key pad selector. 2. The engine must be running at idle and the unit must be on level ground. 3. The engine must idle at least Arrow five minutes from a cold start. 4. The transmission must heat to at least 140 degrees F. 5. Push both the up and down arrow buttons at the same time on the key pad.

7/18/2011 MCFRS APPARATUS 14 Transmission Fluid Check

6. After simultaneously pushing both buttons, the symbol “OL” (Oil Level) will display in the screen. 7. “OL” will be followed by one of the following: OK. -1 thru 7, or + 1 thru 7. The “ – “ indicates under filled, “+” indicates overfilled, and the numeral represents the number of quarts. 8. Any other message indicates another problem. You should consult the shop. 9. Always confirm + or – readings by manually checking the dipstick before adding or requesting to drain fluid. 10. Remember, only Trans-Synd transmission fluid can be used.

7/18/2011 MCFRS APPARATUS 15 Reverse Camera

Video screen is located in the right side of the rear view mirror

7/18/2011 MCFRS APPARATUS 16 System

1. These units are the only EMS units in the fleet equipped with air brakes. 2. They also have a 4S-4M anti-lock brake system. 3. The brakes are S-Cam drum type. 4. The air compressor is a Bendix 13.2 cfm. 5. Each unit has four air reservoirs and three air tanks. 6. On one end of each air reservoir there is an manual valve. 7. The air dryer is located mid frame on the left frame rail .

7/18/2011 MCFRS APPARATUS 17 Air Brake System

Air is drawn into the air compressor through the air cleaner. The air is compressed and sent to the air dryer. The air dryer removes 95 to 98% of the moisture and oil vapor from the compressed air. The dried air leaves the dryer and is sent to the supply or, wet tank where it decompresses and is routed to the primary, secondary, or accessory reservoirs. When the air reservoirs come to full pressure the air governor disengages the air compressor and activates the air dryer to purge its contents to atmosphere. The air gauge on the dash should read approximately 120 to 135 psi. when the air dryer purges

7/18/2011 MCFRS APPARATUS 18 Air Brake System

Air discharge to air dryer

Air intake Air from dryer to wet tank

Bendix 13.2 cfm air compressor Bendix AD-IP heated air dryer

7/18/2011 MCFRS APPARATUS 19 Air Brake System

There are four air reservoirs on the unit, Automatic moisture but only three air ejector tanks. The wet and primary air system share the same compartmented tank. There is a secondary tank followed by an accessory tank. All tanks are equipped with a automatic moisture ejectors.

7/18/2011 MCFRS APPARATUS 20 Air Brake System

When you apply pressure to the Rear brake chamber brake pedal, air leaves the tanks and enters the brake chambers engaging the service brakes.

When you apply the parking brake, air is evacuated from the chamber allowing the spring (parking) brake to apply.

Always report corrosion or damage to any brake chamber. Spring brake side of chamber

7/18/2011 MCFRS APPARATUS 21 Air Brake System

ABS line Air line When air enters the service chamber it pushes on a diaphragm which in turn pushes the push rod and Brake chamber Clevis pins slack adjuster forward. The slack adjuster turns the S- Camshaft and forces the shoes against the brake Clevis drum.

Slack adjuster

7/18/2011 MCFRS APPARATUS 22 Air Brake System

There are two brake blocks per shoe. There are two ¼ inch line ways to check and see if you have proper braking material. Look at the bevel, if bevel is not visible you are at ¼ inch. Some manufactures have the marking line but not all. When you get down to the Brake block line you are at ¼ inch. Bevel

Any drum brake with less than ¼ inch of pad is Out Of Service

7/18/2011 MCFRS APPARATUS 23